SAMSUNG ELECTRONICS AMERICA, INC.
SD820
Processor |
80386SX |
Processor Speed |
25MHz |
Chip Set |
Unidentified |
Max. Onboard DRAM |
8MB |
Cache |
64KB |
BIOS |
Phoenix |
Dimensions |
330mm x 218mm |
I/O Options |
32-bit external memory slots (2) |
NPU Options |
80387SX/3167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Serial port 1 |
J1 |
Reset switch |
J24 |
Serial port 2 |
J2 |
Speaker |
J25 |
Parallel port |
J4 |
Front panel connector |
J26 |
Serial port header |
J5 |
32-bit external memory card slots |
SL1 & SL2 |
Serial port header |
J6 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Printer acknowledge type select trailing edge |
J7 |
pins 2 & 3 closed |
Printer acknowledge type select leading edge |
J7 |
pins 1 & 2 closed | |
» |
Parallel printer port enabled (LPT 1) |
J8 |
pins 1 & 2 closed |
Parallel printer port disabled (LPT 1) |
J8 |
pins 2 & 3 closed | |
» |
Parallel printer port disabled (LPT 2) |
J9 |
pins 2 & 3 closed |
Parallel printer port enabled (LPT 2) |
J9 |
pins 1 & 2 closed | |
» |
Serial port enabled (COM 1 & COM 2) |
J10 & J11 |
pins 1 & 2 closed |
Serial port disabled (COM 1 & COM 2) |
J10 & J11 |
pins 2 & 3 closed | |
» |
Monitor type select color |
J12 |
pins 2 & 3 closed |
Monitor type select monochrome |
J12 |
pins 1 & 2 closed | |
» |
Factory configured - do not alter |
J13 |
Open |
» |
ROM size select 64K |
J14 |
pins 1 & 2 closed |
ROM size select 128K |
J14 |
pins 2 & 3 closed | |
» |
Factory configured - do not alter |
J15 |
Open |
» |
DRAM speed select 100 ns |
J22 |
pins 1 & 2 closed |
DRAM speed select 85 ns |
J22 |
pins 2 & 3 closed | |
» |
Factory configured - do not alter |
J23 |
Open |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
1MB |
(4) 256K x 9 |
NONE |
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
4MB |
(4) 1M x 9 |
NONE |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
DRAM JUMPER CONFIGURATION | ||||
Size |
J16 |
J17 |
J18 |
J19 |
1MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
2MB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
4MB |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
8MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
DRAM TYPE CONFIGURATION | ||
Type |
J20 |
J21 |
Static column |
pins 2 & 3 closed |
pins 1 & 2 closed |
Fast page mode |
pins 2 & 3 closed |
pins 2 & 3 closed |
Standard RAS/CAS |
pins 1 & 2 closed |
pins 1 & 2 closed |